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Finding the Third Proportional to 9,982,920.88 and 15,334,988.81

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Solution

The third proportional to 9,982,920.88 and 15,334,988.81 is: 23,556,420.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,982,920.88 : 15,334,988.81 = 15,334,988.81 : x
  2. Step 2: Convert to fraction form
    9,982,920.88/15,334,988.81 = 15,334,988.81/x
  3. Step 3: Cross multiply
    9,982,920.88x = 15,334,988.81 × 15,334,988.81
  4. Step 4: Simplify right side
    9,982,920.88x = 235,161,881,879,500.16
  5. Step 5: Solve for x
    x = 235,161,881,879,500.16/9,982,920.88
  6. Step 6: Final answer
    x = 23,556,420.49

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.